Paper-coating machine.



No. 890,221. PATENTED JUNE 9, 1908. E. B. DAVIDSON & W. GORGES.

PAPER GOATING MACHINE.

APPLICATION FILED Nov'. 5,1906.

7 SHEETS-SHEET l.

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No. 890,221. PATENTED JUNE 9, 1908. E. B. DAVIDSON & W. GORGES.

PAPER GOATING MACHINE. APPLIOATION :FILED Noms-1906.

'7 SHEETS-SHEET 2v.

No. 890,221. PATENTED JUNE 9, 1908.

P. D. DAVIDSON a. W. GORGES.

PAPER COATING MACHINE.

APPLICATION FILED Nov. 5, 1906.'

7 SHEETS-SHEET 3.

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No. 890,221. PATENTED JUNE 9, 1908. F. B. DAVIDSON & W. GORGES.

PAPER COATNG MACHINE.

APPLICATION FILED Nov.5,1906.

7 SHEETS-SHEET 4.

w All PATENTED JUNE 9, 1908. F..B. DAVIDSN & W. GORGES.

PAPER COATING MACHINE.

PVTYMA'VON FILED NOV. 5,1906.

7 SHEETS-SHEET s.

No. 890,221. PATENTED JUNE 9, 1908.

' P. B. DAVIDSON & W. GORGES.

PAPBRCOATING MACHINE.

APPLIUATION FILED NOV. 5,1906.

'7 SHEETS-SHEET 6.

R N Q N' N No. 890,221. PATENTED JUNE 9, 1908. 1:". B. DAVIDSON & W. GORGES.

PAPER GOATING MACHINE.

- APPLIGATION FILED`NOV.5,1906.

7 SHEETS-SHEET 7.

. ,F :g W wamllHHH-l jlwsss ento LMV 0 Ww i UNITED STATES PATENT OFFTCE FRANK B. DAVIDSON AND WILLIAM GORGES, OF MARSEILLES, ILLINOIS, ASSIGNORS TO HOWE AND DAVIDSON COMPANY, OF EAST ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PAPER-COATING MACHINE.

Specification of Letters Patent.

Patented .Tune 9, 1908.

To all whom it may concern:

` Beit known lthat we, FRANK B. DAVIDSON and WILLIAM Generis, citizens of the United States, both of Marseilles, in the county of Lasalle and State of Illinois, have invented certain new and useful Im rovements in Paper-Coating Machines; an we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to a machine for coating paper or other sheet material with paraffin, or the like, of the same General character as that set forth in PatentIo. 437,435,

anted September 30th, 1890 to Warren B.

owe.

A machine embody our invention is moreespeciallyintende for use in coating paper in a continuous web as it comes from the paper making machine, but the features of construction constituting our invention may be also applied to a form of machine employed for coating separate sheets of. pa per or straw-board, as in the case-of the machine shown in said Howe patent. n

The object of our invention is to ini rove the construction of paper `coating mac ines of the kind referred to with respect to various features of the same, and it consists in the matters hereinafter set forth and pointed out in the appended claims.

As illustrated in the accompanying drawingsz-Figure 1 is a view in side elevation, with parts in section of a machine embodyin our invention. Fig. 2 is a cross-sectiona view of the same, taken upon line 2-2 of Fig. 1. Fig. 3 is an end View of the same, as viewed from the right hand of Fig. 1, with parts in section. Fi 4 is an end view of the machine, as viewed om left hand of Fig. 1. Fig. 5 is an end view like Fig. 4 showing some of the moving parts in, chan ed position and certain parts in section. a horizontal plan section, taken upon the line 6-6 of Fig. 1. Fig. 7 is an enlarged detail plan section, taken on line 7--7 of Fig. 1.

ig. 8 is an enlarged detail section, taken u on line 8-8 of ig. 7. Fig. 9 is a detail p an view of the upper roll and upper reservoir of the machine, with adjacent parts. Fig. .10 is an enlar ed detail section, taken upon line 10-10 o Fig. 9. Fig. 11 is a detail perspective view of one end ofthe upper reservoir. Fig. 12 is an enlarged perspective view of one end of the longitudinal bar or girder which carries the adjusting means for the upper reservoir. Fig. 13 is a detail side elevation of the mechanism for lifting the upper roll. Fig. 14 is a detail section, taken upon line 14-14 of Fig, 13. Fig. 15 is a detail section, taken upon line 15-15 of Fig. 13. Fig. 16 is an enlarged detail section taken through the bearings of the upper and lower rolls, and the adjustable support for the up er roll inter osed between said bearings. ig. 17 is a etail section, taken upon line 17-17 of Fig. 16. Fig. 18 is a plan view of the main trough or receptacle with arts broken. Fig. 19 is a detail plan view'o one end of the feed regulator for the lower roll, with its adjustable su port. Fig. 2O is a detail cross-section, ta en on line 20-20 of Fi 19. Fig. 21 is a detail plan view of one en of the scraper for the lower roll and its adjusting means. Fig. 22 is a section, taken on line 22-22 of Fig. 21. Fig. 23 is a detail plan view of one end of the scraper for the upper roll, with its adjustin means. F' 24 is a section taken upon ine 24-24 of Fig. 23.

As shown in said drawings, A A.l indicate two upright frame standards located at o posite ends of the machine, and B an e ongated, shallow `trough or receptacle for par'- affin or other coating material. Said trough is made of cast metal and extends between and is attached at its ends to the upper ends of the frame uprights A A1; constituting with the latter-the main frame of the machine.

O indicates the lower and D the u per roll for applying the coating materia to the pa er, said rolls -being arranged longitudina ly above the receptacle B, with their central axes in the same verticalv lane. The lower roll C is mounted at its en s in stationary bearin s A2 Aa which are secured to and rise from t e upper ends of the frame standards A A. The upper roll D is mounted at its ends in bearings carried by transversel extending, horizontally arranged, ivote supporting members or arms E E1 w 'ch are connected by means of pivots e e1 with brackets A4 A5 that are attached to and rise from the upper ends of the standards A A1. The said pivots eel are located at one side of the ig. so

axes of the rolls C and D, so that rising and falling movement of the upperroll is afforded by the swinging of said arms on said pivots. The framestandards A A1 are provided near their upper ends at some distances below their top surfaces with inwardly extending, horizontal shelves a a1 (Fig. 1) on which the ends of the receptacle B rests and to which the same is bolted. Said standards A A1 are, moreover, provided with flat horizontal top surfaces to which the bearings A2 A11 for the lower roll, and the brackets A4 A5 for sustainin` the upper roll are bolted, and said horizontal top surfaces of the standards are surrounded by raised rims a2 a3 (Fig. 1) forming receptacles for lubricatin material that mayv escape from the bearings located above said frame standards.

Extending horizontally beneath the receptacle B is a steam chamber B1, the top wall v of which constitutes the bottom wall of the receptacle so that heat will readily be communicated to the contents of the receptacle, in order to retain the coating li uid, usually melted parafhn, in its liquid condition and at a desired uniform tem erature. Said steam chamber B1 is preferahly cast inte ral with the' rece tacle. Said steam cham er B1 is provide -with a supply pi e b and return pipe b1. Steam is supplie to the supply pipe b from a suitable steam generator and,

- after circulating through the chamber B1,

. asses therefrom through the outlet pi e b1. ISaid steam chamber preferably extendIs) the full width of the receptacle B and nearly the entire length thereo and is provided with transverse partitions b1 b2 (Fig. 18) extending alternately from opposite sides of the chamber so as to form a tortuous passage through which the steam passes from the inlet pipe b to the outlet pipe b1, which ipes are connected with opposite ends of sai tortuous pasasge.

On the shaft or journal of the lower roll C, exterior to its bearing A3, is secured a gear wheel C1 which intermeshes with a like gear wheel D1 secured to the journal of the u per roll D. On a bracket A8 is .mounted a riv'- ing shaft I which is given motion from any suitable source of ower and has attached to it a gear inion 111) which intermeshes with the gear w eel C1 of the lower roll. By the earlng described, the rolls C and D are driven so that they rotate in opposite directions at the same rate of s eed.

The lower roll C exten s downwardly into the receptacleB and its lower portion is immersed 1n' the coatin li uid contained in said rece tacle, which 1s ta en u by the said lower roh, by which it is trans erred to the under side of the sheet. The upper roll D a plies the coating liquid to the upper side of the sheet and receives its supply of paraffin from a longitudinall trough or reservoir F which is mounted at one side of the said upcent to the surface of the said roll.

per roll and is supported on the arms E 'E1 b which said upper roll is directly sustained Said reservolr F is located at the downwardly moving side of the roll D, and is of approximately L-sha e in cross-section, havlng the margin of its ower wall closel adj an 'lXhe uprlght s1de wall of said reservoir forms one side of a trough extending longitudinally of the roll D, the other side of which is formed by the surface of the roll itself in its part above the said bottom wall. Said reservoir F is povided with end walls f, the margins of w 'ch, adjacent to the rol D, are curved to conform to the curvature of the roll and are in close contact with She same, to prevent the escape of the coating quid at the ends of the reservoir. The ends of the supporti arms E E1 are extended beyond the roll D at the sides thereof at which the reservoir is located, and said reservoir is supported on said arms by means of longitudinally extendin arms F1 F1 on the ends of the reservoir whic extend and are bolted to the said arms E'E1. Liquid from the reservoir F is fed to the downwardly moving sides of the roll D through a narrow space or o ening afforded between the margin of the hottom Wall of said reservoir and the adjacent surface of the roll. In order that the feed of liquid to said roll D may be exactly adjusted to give a coating of desired thickness to the aper, and in order that the quantity of liquidp fed to the roll shall be uniform throughout the entire length of the same, provision is made for adjusting the inner margins of the bottom wall of the reservoir relatively to the surface of the said roll as follows:

G indicates a ri 'd bar or girder which extends longitudina l of the reservoir F outfside of and paralle with the same, and the ends of which are rigidly attached to the ends of the sup orting arms E E1. Said bar G, as shown infigs. 10 and 12, consists of a vertically extending web ortion g, provided between its upper and lower margins with an outwardly extending, horizontal, stiening flange g1. At its ends the said bar G is shown as providedwith horizontal inwardly extending lugs g2 g2 whichare arranged in overla ping relation with like lugs f1 on the arms E1) of the reservoir F and laterally extending lugs e2 e2 on the levers E and E1; said lu s e1 g2 and f1 being provided with coincidin olt holes throu hwhich are inserted bo ts (Fi 8) by whic both the reservoir F and the ar G are secured to the ends of the said arms E E1. A plurality of adjusting screws H H1 (Figs. 1() and 12) extend horizontally through the bar G; the screws H having screw threaded engagement at their inner ends with the bottom wall of the reservoir-and turning freely in the said bar, while the screws H1, which are arranged alternately with the screws H, have screwsenesi a' threaded engagement with the bar and abut the upper roll supported thereby, lifted to at their inner ends a ainst the trough or resseparate 'the rolls from each other; the arms crvoir. The screws I and H are arranged thus arranged having the form and function at close intervals throughout the entire. of levers. l

length of the reservoir and by adjustment of The distance apart of the rolls, or the ar- 70 Ithe saine the bottom Wall of the said reservoir roach of the movable upper roll towards ma be exactly and accurately held parallel ower stationary one, is determined or l .ii'

wit and at a desired distance from the ited by means of adusting means interposml downwardly moving surface ot the upper between the arms It E' and the top surfaces 1g roll D. ot the bearings A As of the lower roll. Each 75 l Provision is made for aiiording a continuof such adjusting devices consists, as clearly ous feed or supply of the liquid arailin or seen in Figs. 4, 16 and 17, oi a horizontally coatin materia to the receptacle and resarranged, ta red or wedge-sha ed block M ervoir* by means as follows: d is a supply inte osed etween o posite inclined uptank, shown as resting upon the door ewar y and downward y facing bearing sur- 30 tween the standards A A, and 'K a pump atfaces m m formed on said bearings and arms. tached to the standard Al and provided with To provide for moving or shifting the block an inlet pipe L which passes over the end M and holding the same in adjusted position,

wall of the tank J and extends downwardly an adjusting screw M1, engaged with the las therein to'a point near its bottom. The wedge block and arranged to give endwise 35 pipe L has a branch y provided with a valve movement thereto, is'employed. lln the par- '1 and connected with an outlet opening at ticular construction shown, the adjusting the bottom oi the tank. T he pump plunger screw 'M has screw threaded engagement Zi: is operated by a connecting rod 1 from a with a lug m2 which rises 4trom the bearing of 2s gear pinion mounted on the bracket A the lower roll and is engaged with the block p0 and intermeshing with the driving pinion l1; by a connection ermittin the turning of the the upper end ot said connecting rod k* bescrew while pro ucing en wise movement of ing enga ed with a wrist pin k on the gear the block with the screw. in the particular -pinion Y 1. A delivery pipe Lf leads from construction illustrated in theA drawings, the a0 the said pump and rises to a point above the screw M1 has near its inner end an annular 95 up er reservoir F, the upper end of said pipe groove and the block is rovided with a rebeing extended horizpntall to the adjacent cess and with a vertical s ot opening from the end ci said reservpir an directed downend surface 'of the wedge into said recess; the wardly so as to discharge into the same. groove in the screw being engaged with the An overflow ipe L extends. throu h the metal at the sides of said slot, so that the mi bottom wall ov said receptacle B and as its screw is held from endwise movement relaopen upper end located at the level of the tivelyto the block but is free to rotate by the surface of the li `uid in said receptacle, the turning of its rooved end in. said slot.

lower end of sai pipe discharging into the In order to old the wedge block in lace o tank d'. An over ow i ipe La is connected between the arm andthe bearing of the ower 1c with the side wall of t e reservoir F at the roll, said block is rovided on'its top and botopposite end of the sameirom the delivery tom surfaces wit longitudinal ribs ma m4 lpipe L1. Said overflow pipe L3 leads down' (Fig. 17) adapted to engage corresponding wardly to and discharges into the main grooves formed in the bearin iaces m m of trough or receptacle B. The liquid paraiiin said arm and bearing). By a justment endy] is supplied continuously to said reservoir F wise ot the wedge locks arra ed as deby the pump, the surplus li uid passes therescribed, both ends of the up er ro C may be from back to the rece tac c B through the adjusted toward and from t e lower roll and overflow pipe L3, and t e overow from the the rolls thereby brought accurately into par- 5o latter receptacle asses-continuousl thereallel relation and exactly adjusted with re- 1; from to the tank throu hthe ove owpi e s ect to their distance apart, according to L. rThe liquid para is continuous y tiie .thickness of the paper being coated and heated b passing through steam-heated rethe pressure that itis found desirableto apceptacle and is there y maintained at a ply to the paper. i

desired tem erature. it sometimes occurs, in a machine con- 1 As herein efore stated, the arms E El, structed as above described, that the weight that sup ort the upper roll D and the reserof the upper roll and iplarts carried by the voir F t ereof, are connected by pivots e e1 arms E and E1 is not su cient to produce the with the machine frame, and in the preferred desired pressure u on the paper, and we have embodiment of my invention illustrated, the therefore provide in themachine shown in i said sup ortin arms E E1 are extended outthe accompanying drawings, means for a wardly yon the said pivots e 'e1 and with plying a' downward stress or pressure to en s the outer ends thereof are connected devices ofthe up er roll D. Devices for this purby which said outer ends of the levers ma pose are s own in the accompanyin drawbe depressed and the inner ends thereoi', wit ings as follows: To each of the arms E, at I cent frame standard A or A1.

horizontal.lever N1, mountedto swing in a vertical plane at the inner face of the adjaing rod N isrpivotcd to said lever N1 by a i fixed distance pivot l'n located near thefulcrum pivot 'n1 of said lever. 'lo the end of sald lever N1 rcmote from its fulcruln pivot is pivoted thc Vupper end of an upright connectlng rod N2,

wnch, at its lower end, is connected b a pivot n2 with asecond lever N 3 located be ow and parallel with the lever N1, the p1vot n2 beim1r located near the fulcrum pivot n3 of saidlever N 3. The connectingrod N 2 is provided with a wei ht N1, preferably hun on the lever so as toe movable thereon. Said weight N1 operates through the levers N1 N 3 to exert a downward pull on the arm E or E1 withwhich it is connected, which, by reason of the interposition of the levers, will be much greater than the downward pressure due to the gravit of the weight itself. By the construction ascribed, therefore, the u per roll, while capable of being lifted, is he d during the operation of the machine by the weight and com ound levers described, at a rom the lower roll, determined by the adjustment of the wedge blocks Provision is made for lifting the up er roll when necessary as follows: O is a roc -shaft extending longitudinally of the machine beloW the outer ends of the arms E E1 and mounted in brackets o1 o1 secured to the side faces of the frame standards A A1. Said rock-shaft 0 is provided with eccentrics O1 01 adapted to engage upwardly facing surfaces formed on yoke pieces P1 which are attached to the lower ends of upright rods P, the upper ends of which are en aged with the said outer ends of the arms E 1, preferably by means of loops on' the upper ends of the rods engagin notches in the up er edges of said arms. he rods P P are shown as engaged at points between their ends with guide lugs os projectin from the up er ends of the frame standards. Each yok P1, as clearly shown in Fi s. 13 and 15, is provided with two depenin arallel arms that extend at opposite sides o t e rock-shaft and which are provided at their lower ends with laterally projecting lu s p, the up er margins of whlch are provied) with note es or recesses formin seats for the ends of a bearing plate 1 w ich extends beneath and bears against t e under surface of the eccentric`01. Set-screws p2 p2, threaded upwardly through the lugs p p act against the lower surface of the bearin plate p1 at the ends of the same, thereby a Ording vertical adjustment of the said plate on the yoke pieces.

'point near the `ing or sliding 'required to give the a cylindric tube or pip seaaei Attached to the rock-shaft O at one end of the same is a crank arm or o erating lever O1, which prefcrab7 extends d) oor so that ated b the foot.

For ocking or holding the up .er roll D at a desired elevation when lifted y thc device described', we prodvide means as follows: Ate tached to the rock-.shaft 0 is a notched wheel or disk 03, the notches of which are adapted to be engaged by a vertically movdetent Q located beneath said disk. Said detent Q is mounted 0n the upper end of a vertically sliding rod Q1 mounted in 'vertically separated guide brackets it may be opersively acting coiled sprin 1, interpose between the lowermost gui e sure on said rod adapted to retain the detent (normally elevated and in engagement with-- t For o Verating said e notched wheel Q3. detent the lower end of the rod 1 is extended downwardly to a point near the lloor and is pivotally connected with a lever arm "R1 attached to a rock-shaft R which is mounted in bearings at the lower part of the standard -A and is provided at the outer. face of said standard with a foot lever R2 which, when depressed, effects the release of the detent Q from the notched wheel O3 and thus leaves the rock-shaft free to turn.

In order to regulate the quantity of coating material taken up by the lower roll C and applied to the lower surface of the paper, as pa er a coating of the desired thickness, affeerl) regulating roll S is arranged at the u wardly moving side of the said roll C. Sai roll S is mounted in bearings permitting it to freely turn, and is held or pressed against said roll C, so that it is ownwardly to a.

racket a5 and a collar q 'on the rod Q1, exerts upward presturned or revolved by its frictional contact.

with the same. Said roll S is provided with a coverin S1 of felt, cloth or'other like material, whic b its pressure against the surface of the ro C, serves to limit the quantity of liquid which is carried by the said roll to and deposited upon the paper. Said roll S, as shown in the drawings, consists of e of considerable diameter and thickness 1n order that it ma have suitable stiffness. To rovide for a justment of the roll S towar and from the roll C, so that it may be made to bear with a desired degree of pressure a ainst said roll C, the said ro l Shas at each end a journal adapted to turn in the up er end of the upright arm of an L-shape sup ortin lever S2 which is pivoted to the madh e ame by a pivot s located at the junction of the upright and horizontal arms of said lever, and s0 arranged that the u per ends of the upright arrn, with the end o the bar S carried thereby, will swin horizontally toward and from the lower ro C when the lever is turned on ,of the frame standards A or A1.

yits said pivot. Said lever S1 is pivoted to a bracket A7 bolted to the top surface of one The hori zontal or adjusting-arm of the su porting -lever S1 extends outwardl from t e pivot sof the lever and the brac et A7 is also exthe said horizontal arm of the supporting lever. In the said lugs s1 is rigidly secure an upright screw-threaded a justing bolt S3 which rises throu h an aperture 1n the outer ends of the sai horizontal arm of the support' lever. On said adjusting bolt, above an below the lever arm, are located adjusting nuts s1 si. The top and bottom surfaces of said adjustin arm, in its part engaged by the said nuts, 1s made of rounded or convex form so that the` nuts will have proper bearin against the arm, notwithstanding the c ange in the angular position of the same occurring in its adjustment. By adjustin the nuts s2 s3 on the bolt S3, at

- both ends o the machine, the roll may be held against the roll C with a degree of pressure required for givin pro er supply or feed 1 of the coating materia to t e paipen e with clean- The rolls C and D are provi ing scra ers havin scraping lblades in contact wit the rollsor scraping 0H or removing any particles of fiber or other forei material that may be transferred from t e pa er to said rolls. In the case of the lower rol its scraper is locatedlat the downwardly moving side of the roll so as to remove anl articles adheringto the surface of the rol before the same enters the li uid in the receptaclev B, and in the case o the up er roll, its scraper is located at the u warly moving side of said roll so as to ikewise remove any particles from the surface of said roll before the latter reaches the liquidin the upper reservoir F. The scraper for the upper roll consists of a bar U provided with a scraping blade u, while the-sera er for the lower roll consists of a like bar rovided with a scraping blade t. The bla es t and ful are arranged obliquely to the surfaces of the rolls C and D, so that, by the angular .or rotative adjustment of the bars T and U, to which they are attached, the edges of the blades will be pressed with more or ess force against the surfaces of the rolls. The mountings for the two Scrapers, by which they are adjustably supported, are provided with means aifording suchrrotative adjustment of said Scrapers. The lower scraper is mounted on the frame of the machine whilethe upper scra er is mounted on the supporting arms E 1 of the upper roll.` In t e case of the lower scra er, the su porting bar T thereof is provideat its en s with journals which views of Figs. 19 and 20),with ay part engage engge bearing apertures formed in brackets T1 1 attached to the inner faces of the brackets A1 A5and said bar is provided with adjusting arms Tz Tz rigidly attached to the ends of said bars-inside of thebrackets and extendin outwardly from the bars. The brackets 1 are extended outwardly and are provided at their outer ends beneath the outer ends of the levers with laterally extending lugs t1 located beneath the outer ends of the said arms T1. (Figs. 21 and 22). A Se* cured in each of said lugs t1 and risin therefrom is a screw-threaded adjusting olt Ta which passes throu h a slot in the outer end of the arm T1 and 1s provided with nuts t t11 surfaces of the supporting arms'E E1. To

the ends of said bar U are rigidly attached adjusting arms Uz that extend outwardly from the bar. As more clearly shown in the detail views, Figs 23 and 24, each bracket U1 is provided at its outer end with a laterally projecting lug u1 in whichv is secured an u right screw-threaded adjusting bolt 3. Said bolt Us extends upwardly through a slot in the outer end of the arm U1 and is provided with two adjusting nuts u2 and u, ocated one below and the other above the positionsl arm U2, which latter is rounded or made convex on its lpper and lower surfaces, in its y the said nuts, in the same manner as hereinbefore described in connection with the arms ofthe lowerfscra er.

The scraping blades t and u will be ma e of thin or elastic metal, so that their edges in contact with the rolls, will be adapted to act or press yieldingly on the surfaces ofthe rolls. The said blades may be secured b any suitable means to the supporting bars and U, as, for instance, by screws, as shown in the drawings.

The machine illustrated in the drawi sis provided with a top guide roll V exteiiin ongitudinally above the u per roll D and mounted at its ends in brackets V1 V1 which are attached to and rise from the arms E E1. Said machine illustrated is designed especially for treating or coating a continuous web of paper as it is delivered from the aper making machine, and the to guide ro V is used to support the web w en 'the coating machine is not in o eration, so that the web may, at such time, e carried past the coating machine without being coated and withmachine 'mounted on sald arms at the upwar ing side of said upper roll, and a c eaningout interfering with the operation of the p a r making machine.

e claim as our invention Y 1. A paper coating machine comprising a rame, two opposing rolls, one located above the other, the lower roll being mounted in bearings on the machine frame, horizontally arranged supporting arms cpivoted to the machine frame and provide with bearings for said upper roll, the machine frame and said supporting arms being rovided with contactlng surfaces adapte to lirplit the approach of the upper to the lower ro 2. A pa er coating machine comprising a machine rame, two op osing rolls, one located above the other, -t e lower roll being mounted in bearings on the machine frame, horizontally arranged supporting arms ivoted to the machine frame and provided) with bearings for said upper roll, and a reservoir for suppl coating material to the upper roll mounte on said arms.

3. A paper coating machine comprising a machine ame, two op osing rolls, one located above the other, t e lower roll being mounted in bearings on the machine frame, horizontally arranged supporting arms ivoted to the machine frame and provided) with bearings for said upper rol1a receptacle for coating liquid located on the machine frame below the lower roll, and a reservoir for supplyingcoating liquid to 'the upper roll mounted on the said supportmg arms.

4. A paper coating machine comprisin a machine frame, two opposing rolls, one ocated above the other, the lower roll being mounted on bearings on the machine frame, horizontally arranged supporting arms pivoted to the machine frame and provided with bearings for the upper roll, a receptacle for coatin liquid located below the lower roll, a fee -regulating roll mounted on the machine frame and bearing against the upwardly moving side of the lower roll, and

ositively acting means for adjusting said eed-regulating roll relatively to the said lower roll.

' 5. A paper coating machine comprisin a machine Trame, two opposing rolls, one ocated above the other, the lower roll being mounted on bearings on the machine frame, horizontally arranged supporting arms pivoted to the machine frame and prov1ded With bearings for said upper roll, a receptacle for coating liquid located below the lower roll, a cleaning scraper for the upper roll movsera er for the lower roll mounted on the mac e frame at the downwardly moving side of said lower roll.

6. A paper coating machine comprising a machine frame, two opposing rolls, one

horizontally arranged supporting arms forthe upper roll, provided with bearings for said upper roll, said arm being pivoted to the machine frame, actuating means operating simultaneously on both arms for lifting at once both ends of said upper roll, said actuating means acting downwardly on said arms at oints exterior to thepivots thereof, and adjustable stops on the machine frame for limiting the approach of the upper toward the lower roll.

7. In a paper coatin machine, a machine frame, two opposing ro s, one located above the other, the lower roll being mounted in bearings on the machine frame, horizontall arranged supporting arms for the up er ro pivoted to t e machine frame, and a justing means interposed between the said beal'ings for the lower roll and said arms for regulating the distance apart of the said rolls.

8. In a paper coatin machine, a machine frame, two opposing ro ls, one located above the other, the lower roll being mounted in stationary bearings on the machine frame, movable bearings or the upper roll and horizontally sliding wedge blocks interposed between the bearin s of the lower and upper rolls to regulate t e distance apart of said rolls.

9. A paper coating machine comprisin a machine frame, two opposing rolls, one ocated above the other, the lower roll being mounted in stationary bearings on the machine frame, horizontally arranged supporting arms for the up er roll, pivoted to the machine frame, an horizontally movable Awedge blocks inter osed between the bearings of the lower ro l and said arms for regulating the distance apart of said rolls.

10. In a paper coatin machine, a machine frame, two opposing rol s, one located above the other, the lower roll being mounted in bearings on the machine frame, horizontaly arranged supporting arms pivoted to the machine frame and provided with bearings for said upper` roll, means interposed between.

said arms and adjacent parts of the machine Y frame for adustably limiting the descent of the upper rol and Weighted levers pivoted to the machine frame and connected with said supporting arms to hold the upper roll from rlslng.

11. A paper coating machine comprisin a machine frame, two opposing rolls, one ocated above the`other, the lower roll being mounted in bearings on the machine frame, horizontally arranged supporting arms pivoted to the machine frame and provided with bearings for said upper roll, actuating means operatlng simultaneously on both of said ame for srpportmg arms for lifting the u per roll, a l

ustable stops' on -the machine f oppo frame, two opposing ro ends with lo and means for turning the sai the -ipproach -oi the toward the lower ro two horizonta y arranged, rallel levers pivoted one above the other to e vends ofthe machine frame below each of said .fsu porting arms, the lower'one of said -levers ing provided 'with .a weight, rods connecting said levers with each other, and iconnecting rods pivotally-connected at their ends to said arms and tothe `uppermost of said parallel levers.

12. vIn a paper coatinlg machine, a machine the other, the lower roll being mounted in bearings on the machine frame, horizontally arrangd supporting arms pivoted to the ma- 'hine ame and provided with bearings for said upper roll, .weighted levers mounted on the machine frame and connected with the said arms, to hold the u er roll from rising, and means connected wit the outer ends of said levels for depressing the same and lifting the upper roll against the action of sai weighted levers.

13. The combination of a machineframe, opposin upper and lower rolls, horizontally arrange supporting arms pivoted to the machine frame 'and vprovided with bearings for the upper roll, a reservoir for supplyin coating material to the up er roll provide at its 'tudin ly extending arms attached to sai supporting arms, a rigid bar attached at its ends to said supporting arms and extending outside of and paralle with said reservoir, and adjusting screws engaged with said bar and with the reservoir for adjust-ing the bottom wall of said reservoir toyar and from the adjacent surface of the sai uppler ro 14;.` e combination of amachme frame, op upper and lower rolls, horizontall arrange supporting arms for the upper ro ivoted between their ends to the machine ame, a horizontal rock-shaft mounted upon the machine frame and provided with eccentrics, rods' engaged with said eccentrics and with the outer ends of said supporting arms,

rock-shaft.

15. The combination of a machine frame, opposinupper and lower rolls, horizontally arrange sup rting arms pivoted between their ends to t e machine frame for the upper roll, a horizontal rock-shaft mounted upon the machine frame and provided with eccentrics, rods engaged with said eccentrics and 'with the outer ends of said. supportin arms,

and a crank-arm attached to said roc -shaft for turning the same.

16. The combination 'of a machine frame,

upper 'and lower rolls, horizontall arrange supporting arms for the upper rol pivoted between their ends to the machine frame, a horizontal rock-shaft provided with eccentrics, rods engaged wit said eccentrics and with the outer ends of said supports, one located above ing arms means for turning the said rocksli'aft and means for locking the said' roekshaft from turning.

17. The combination of a machine frame, opposin upper and lower rolls, horizontall arrange supporting arms for the upper ro l ivoted between their e'nds to the machine rame, a horizontal rock-shaft mounted upon machine frame and provided with eccentrics, rods engaged withsaid eccentrics and with the outer ends of said supporting arms, and means for locking the said rock-shaft `from turning, embracin a notched wheel on the rock-shaft and a sli g detent adapted to engage said wheel.

18. The combinationof a machine frame, opposin upper and lower rolls, horizontally arrange su portin arms for the upper rol a horizonta rock-s aft mounted upon the machine frame and provided with eccentrics, rods en aged with said eccentrics and with the sai supporting arms, and means for locking the said rock-shaft from turning, embracing a notched wheel on the rock-shaft, a sliding detent adapted to engage said wheel, a spring applied to throw the said detent into engagement withl the notched wheel, and a f oot ever connected with said detent for releasing it from the notched wheel.

19. The combination of a machine frame, opposin upper and lower rolls, horizontallf arrange supporting arms for the'upper rol privoted between their ends to the machine ame, a horizontal rock-shaft provided with two eccentrics, rods connected at their upper ends with the outer ends of said supporting arms, bearing plates carried by the rods, in co'ntactvwith the lower surface of said eccentrics and means for adjusting said plates vertically upon the rods..

20. The combination of a machine frame, opposin `upper and lower rolls, horizontall arrange supporting arms for the upper rol ivoted between their ends to the machine ame, a horizontal rock-shaft provided with two eccentrics, rods connected at their upper arms, said rods being provided at their lower yends with yoke pieces having depending arms which extend atop osite sides of .the rock-shaft andare rovied withlaterally extending lugs, and caring .plates seated on said lugs and engaging the lower surfaces of said eccentrics.

21. The combination of a machine frame, opposin upper and lower rolls, horizontally arrange 'supporting arms for the upper rol ivoted between their ends to the machine ame, a horizontal rock-shaft provided with .two eccentrics, rods connected at their upper ends with the outer ends of said supporting varms and provided at their lower ends with oke pieces having laterally rojecting lugs, caring plates in contact wit the lower surand faces of said eccentrics, and set-screws inserted through the said lu s and bearing upwardly on the ends of sai bearing lates.

22. The combination of a machine ame, opposing upper and lower rolls, horizontallyr arrange supportin arms for the upper roll, pivoted to the madlline frame, bearlngs for the lower roll mounted on the machine frame, horizontally movable Wedge blocks interposed between said arms and the said bearings for lthe lower roll, and adjusting screws for said wedge blocks having o erative connection with the latter and wit one of the parts engaged by the Wedge block.

23. The combination with a rotative roll for applying coating material, of a scraper, adjusting arms connected with and giving adjusting movement to the scraper, screwthreaded adjusting bolts rigidly attached to the machine frame, and nuts applied to said bolts and ada ted to bear against opposite sides of the adljusting arms.

24. The combination with a rotative roll for applying coating material, of a scraper;` adjusting arms connected with-.and giving adjusting movement to the scraper, screwthreaded bolts rigidly attached to the machine frame, nuts ap opposite sides of sai adjusting arms being site convex surfaces said nuts.

25. The combination with a rotative roll for applying coating material, of a scraper, adjusting arms connected with and adapted to give adjusting movement to the scraper, 'screw-threaded bolts rigidly attached to the machine fraine, and nuts applied to said boltsl and adapted to bear against opposite sides of said adjusting arms, said arms being provided with holes for the passage .of the said bolts and with opposite, convex surfaces for engagement with the nuts.

26. The combination of a machine frame, o posing upper and lower rolls mounted t ereon, a receptacle for coating material located beneath the lower roll, a feed regulating roll located at the upwardly'moving side of the lower roll, and means for adjustably supporting said roll embracing angular supporting -levers pivoted to the machine frame having upright arms provided with bearings for said feed regulating roll, and adjustmg arms rigid with said upright arms and adjusting means connecting the said adjusting arms and having bearing on 'parts rigid with said machine frame.

27. The combination of a machine frame, o posing upper and lower rolls mounted t ereon, a'receptacle for coating material located beneath the lower roll, a feed regulating roll located at the upwardly moving side of the lower roll, and means for adjustadjusting. arms, said provided with oppofor engagement With lied to said bolts on.

ably supporting said roll embracing angular supporting levers pivoted to the machine frame and havingu right arms provided with bearings for said eed regulating, roll, and adjustmg arms rigid with the upright arms, and adjusting means connecting the said adjusting arms with the machine frame, embracmg screw-threaded bolts attached to the machine frame and nuts applied to said bolts at opposite sides of the said adjusting arms.

28. The combination of a machine frame, opposing upper and lower rolls, a rece tacle for coating material located beneat the lower roll, a feed regulating roll located at the upwardly moving side of said lower roll, angular supporting levers for said roll having u ri ht arms provided with bearings for said flieg regulating roll, and adjusting arms rigid with said u right arms, brackets bolted to the machine rame to which said supportling levers are pivoted, saidbracktes being provided with laterally extending lugs, screwthreaded bolts secured to said lugs, and nuts applied to said bolts at opposite sides of the said adjusting arms, said arms being provided With holes for the passage of said bolts.

29. The combination with a rotative roll for applying coatin material, of a cleaning scraper consisting o a sppporting bar and a scraping lblade attached to the bar and having angular relation to the surface of the ro l, said bar being mounted to turn in bearings on the machine frame, means for effecting angular adjustment of said bar, embracing adjusting arms rigidly attached to the ends of the bar, screw-threaded bolts on the machine frame, and nuts applied to said bolts and adapted to bear against opposite sides of said adjusting arms.

30. The combination with a machine frame and a rotative roller for applying coating material, of a cleaning scraper comprising a supporting bar and a scraping lade attached thereto and bearin at its edge against the surface of the ro at an angle thereto, brackets upon the machine frame provided with bearlngs for the ends of said supportin bar, adjusting arms rigidly attached to te ends of said supportlng bar'adj acent to said brackets, scre -threaded adjustin bolts aflixed to said brackets, and nuts app ed to said bolts and engaging opposite ends of said adjustin arms.

31. The combination wlth a machine frame, of a rotative roller for applying coating material, a cleaning scraper having a scraping blade, the edge of which bears against the surface of said roll at an angle thereto, brackets on the machine frame provided with bearings for thel ends 'of said scraper, said brackets havinglaterally projectlng lugs, adjusting arms rigidly attached to the en s of the scraper adjacent to said bracket, screw-threaded adjusting bolts sethe presence of two Witnesses, this 31st day cured to said lugs on the brackets, said arms of October A.. D. 1906.

bein provided with slots for the passage of FRANK B. DAVIDSON. saidolts, and nuts applied to said bolts at WILLIAM GORGES. 5 the opposite sides of said arms. Vtitnesses:

In testimony, 4that We claim the foregoing J. A. KELSA,

as our invention We afiix our ,signatures in F. E. SMITH. 

